[k3ng] built his own automatic antenna tuner. First, it measures the SWR of the line by using a tandem match coupler. This device allows the forward and reflected signals on the line to be extracted.

Want to inject some additional performance into your car? Performance chips are an easy way to add more horsepower and torque. If you are looking to get more power and better fuel economy from ...

Now with a cheap USB TV tuner card, you can jump right into the world of software-defined radio. Elsewhere on the Internet, a surprisingly active RTL-SDR subreddit popped up dedicated to using ...